General
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Target
JJSploit.exe
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Size
305KB
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MD5
515ebbb324353bb1d90cf1da9d7979a7
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SHA1
4f8c4e8d9a4d187fcefd3f83629cdbb0919d2281
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SHA256
8ce258cbd6a16100e4426017ba842a2822c0cd0e59ba361cf731d474d45a090d
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SHA512
b45bb1d0e9beee86d702a3c9d6490398b260f65311b7c04d97cf4eb8df85ba2081f752aa1ef5b0df350ed14796e42b636f559c4cd689f3a416dfc8ed6fa64e42
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SSDEEP
6144:ZloZMzrIkd8g+EtXHkv/iD4/pmHAmB5Kb/Cwhl0Hyb8e1mcDiDDIQgbUX07P1d7:roZcL+EP8/pmHAmB5Kb/Cwhl0ekDk5d7
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1305739020529045617/mC83XwO606BUXBYGCOS54tg62bfXdokTu6f0THs2Nit_oCx2sem7ZnmP0IZG3hgdHkdL
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource JJSploit.exe
Files
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JJSploit.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 227KB - Virtual size: 226KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 77KB - Virtual size: 76KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ